equalize pressure
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Equalize — E qual*ize, v. t. [imp. & p. p. {Equalized}; p. pr. & vb. n. {Equalizing}.] [Cf. F. [ e]galiser.] 1. To make equal; to cause to correspond, or be like, in amount or degree as compared; as, to equalize accounts, burdens, or taxes. [1913 Webster]… … The Collaborative International Dictionary of English
Negative pressure ventilator — This article is about the medical device. For the band, see Iron Lung (band). Negative pressure ventilator Intervention An Emerson iron lung. The patient lies within the chamber, which when sealed provides an effectively oscillating atmospheric… … Wikipedia
ear squeeze — ▪ physiology also called Aerotitis, Aero otitis, Barotitis, or Baro otitis, effects of a difference in pressure between the internal ear spaces and the external ear canal. These effects may include severe pain, inflammation, bleeding,… … Universalium
Pitot-static system — A pitot static system is a system of pressure sensitive instruments that is most often used in aviation to determine an aircraft s airspeed, Mach number, altitude, and altitude trend. A pitot static system generally consists of a pitot tube, a… … Wikipedia
Uncontrolled decompression — refers to an unplanned drop in the pressure of a sealed system, such as an aircraft cabin and typically results from human error, material fatigue, engineering failure or impact causing a pressure vessel to vent into its lower pressure… … Wikipedia
Tympanometry — is an examination used to test the condition of the middle ear and mobility of the eardrum (tympanic membrane) and the conduction bones by creating variations of air pressure in the ear canal.Tympanometry is an objective test of middle ear… … Wikipedia
Torpedo tube — A torpedo tube is a device for launching torpedoes in a horizontal direction. There are two main types of torpedo tube: *Those designed to operate below water level, as fitted to submarines and some surface ships *Deck mounted torpedo launchers… … Wikipedia
Atmospheric diving suit — Divers do not even need to be skilled swimmers.The ADS has variously been referred to as an armored diving suit, armored diving dress, articulated diving suit, Iron Duke, Iron Mike, and deep sea diving robot . The term atmospheric diving suit… … Wikipedia
Valsalva maneuver — The Valsalva maneuver is performed by forcibly exhaling against a closed airway. Variations of the maneuver can be used either in medicine, as a test of cardiac function and autonomic nervous control of the heart or to ‘clear’ the ears and… … Wikipedia
List of United States inventions — 1700s1731 Sextant * The sextant is an astronomical instrument that is used to determine latitude for navigation. It does this by measuring angular distances, like the altitude of the sun, moon and stars. The sextant was invented independently in… … Wikipedia
Frenzel maneuver — The Frenzel Maneuver is named after Herman Frenzel (German HNO physician and Luftwaffe commander).cite book |title=Bennett and Elliott s physiology and medicine of diving, 5th Rev ed. |last=Brubakk |first=A. O. |coauthors=T. S. Neuman |year=2003… … Wikipedia
